Abstract
Objective: To compare the rate of mother-to-child transmission (MTCT) in women with subtype A versus D HIV-1 who received single-dose nevirapine (NVP). Methods: The MTCT rates were compared in women with subtype A versus D at birth and at 8 weeks and 18 months of age of the infants. The rate of late MTCT (after 8 weeks of age) was also analyzed. Results: HIV-1 subtypes were determined for 300 of 306 women who received NVP in the HIV Network for Prevention Trials 012 study (158 women with subtype A and 105 women with subtype D). Infant infection status was known for 297 women. The cumulative rate of MTCT at 18 months was 13.2% for subtype A and 18.3% for subtype D (P = 0.34). The rate of late transmission was 3.8% for subtype A and 7.6% for subtype D (P = 0.28). Maternal baseline viral load was a significant predictor of MTCT, but maternal baseline CD4 cell count and subtype were not. Conclusions: No significant difference was observed in the rate of MTCT in women with subtype A versus D. There was a trend toward a higher rate of MTCT among women with subtype D, however, which was also apparent among women whose infants were infected after 8 weeks of age.
Original language | English (US) |
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Pages (from-to) | 593-597 |
Number of pages | 5 |
Journal | Journal of Acquired Immune Deficiency Syndromes |
Volume | 39 |
Issue number | 5 |
State | Published - Aug 15 2005 |
Externally published | Yes |
Keywords
- HIV-1
- Mother-to-child transmission
- Nevirapine
- Subtype
- Uganda